"I seem to have more fun each year when I play this golf course".
So what was Thompson penalised for and why did it take the LPGA until the next round to inform her?
Johnson won his first major title at last year's US Open while McIlroy followed his 2011 Masters heartache by winning the US Open two months later.
Park, Pettersen and Lee Min-jee of Australia finished tied for third at 13 under par.
The Ladies Professional Golf Association (LPGA) were quick to defend their actions and released a statement after they made a decision to hand her the penalty. "Magnolia Lane, you're just like, 'I'm here, ' which is a great feeling".
She steeled herself in superb fashion, though, and, after fighting back with an immediate birdie at the 13th, had an eagle putt on the last hole to claim what would have been an awesome win.
During the final round of the ANA Inspiration on Sunday (Monday AEDT), a television viewer's email alerted officials to a day-old rules violation by Thompson for a one-inch ball placement error in the third round.
Ryu birdied the 18th hole in the playoff to win her second major title, but her celebration was muted because of the freakish circumstances on the Dinah Shore Course.
"I've realized that the more I can get comfortable with this golf course. and the more I can get comfortable in the environment and the surroundings, the better", the 27-year-old Northern Irishman said.
Back in December, when Spieth returned to Augusta National for the first time since that fateful day to play a round with friends, he was thinking about what happened on the last day of the Masters.
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"During play, I didn't even check the leaderboard but I thought Lexi played really, really well", Ryu said during her interview with LPGA after the round.
To her credit, Lexi birdied three of her closing six holes to reach a playoff, and even had a 20 footer for eagle on the last for what would have been a sensational victory.
She incurred a two-stroke penalty for playing from the wrong place, and a two-shot penalty for returning an incorrect scorecard. If I want to win here, everything's going to have to go well for me.
Q. Can you just sum up that for me, everything you just went through?
After being assured it wasn't, she responded: "This is ridiculous". Thompson birdied the par-4, 387-yard 15th hole to retake the lead before giving it back a hole later with a bogey.
Tiger Woods has joined a chorus of criticism after a female player was denied a chance of winning a major title by an eagle-eyed TV viewer.
"Viewers at home should not be officials wearing stripes", Woods posted on Twitter. "Let's go Lexi, win this thing anyway".
Asked if Sunday's incident would cause players to push for a change in policy, Fowler added: "I'm sure there's already been some sort of push, just from yesterday".
At the men's U.S. Open at Oakmont a year ago, Dustin Johnson won despite playing the last seven holes without knowing his score.